Distribution system for inflammable liquids.



1. F. ROLLAND @I P. A. P. MAUCLRE.' DISTRIBUTION SYSTEMFOR INFLAMMABLE lLIQUIDS.

APPLICATION FILED MART 26 1913.

Patented Jan. 18, 1916.

W/TNESSES:

UNITED sATEs PATENT oFFIoE.

JEAN FRANCOIS ROLLAND .AND PIERRE ANDRE PAUL MAUCLRE, OFVPARIS, FRANCE.

' DISTRIBUTION SYSTEM FOR INFLAMMABLE LIQUIDS.

Liest/i4..

Specification of Letters Patent.

Application led liarch 26, 1913. Serial No. 756.886.

To aZZ 'whom it may concern.'

Be it known that we, JEAN FRANCOIS RoL- LAND and PIERRE ANDRE PAUL MAUGLRE, both citizens of the Republic of France, residing in Paris, France, have invented certain new and useful Improvements in Distribution Systems for Inlammable Liquids, of which the following is a specification.

In many installations, and particularly inV those nowrequired in connection with the automobile vehicle service, where a large number of vehicles are often in a depot, it is of advantage to be able to draw oif petrol or other inflammable hydrocarbon at cocks or taps distributed at diiierent points of the sheds of the installation and served by a collector reservoir placed at a lower lever,

generally underground. The raising of the Not to keep the inflammable liquid in this single pipe or conduit when all the cocks of the system are closed, so that if from any cause this pipe should be broken in the portion above ground, liquid c annot escape, whereby any risk of re or other accident is avoided. These two conditions are realized with the cock forming the subject of the present invention, and which is so constructed or arranged that any desired number of these special cocks can be mounted on a single pipe or conduit; a conduit (likewise a single one) connected to the end of the liquid distributing pipe, leads to the upper part of the collector reservoir for the liquid, that 1s to say to the space filled with compressed gas above the liquid in the said reservoir. The new cock which thus allows of distributing an iniialnmable liquid at different points of a single system of piping with entire safety, presents the characteristic feature that when it is closed it establishes communication between two passages of'its body or shell and which form a continuation of the compressed gas pipe connected to the collector reservoir, whereas the operation of any of the cocks of the installation has for` effect to close the gas conduits of the body, or shell of the cock operated, and thus to. close the communication of thegas space of the reservoir with liquid distributing conduit, thus preventing the emptying of the said conduit by back How of the liquid, and the closing of the cock operated at once reestablishes the continuity of the 'gas pipe, the consequence of which is that the liquid is caused to return into he reservoir from the piping.

This special cock is shown in vertical section in Figure 1 of the annexed drawings. Fig. 2 is a diagrammatic iigure showing one example of the mountingofa number of cocks of this kind on a single system of piping, which is the object of the arrangement.

The cock has four branches, of these, a serves for the admission ofthe liquid and a ,"for the discharge, the latter being shown with a discharge nozzle while the branches b b are in alinement with each other and form so to speak a part of the piping vcommunicating with the gas space of the liquid reservoir; the branch b of one cock can be v Yconnected to the branch Z) of the next by a greater or less length of pipe. The body of the cock comprises a cylinder A into ,which Athe branches b b open and containing a pist0n B formed with4 a passage o, which is opposite the branches b b when the piston 1s raised by the spring d that acts below al washer or shoulder of the spindle e. b, o and b coincide when the cock is not being operated and is in the position of rest shown in Fig. 1. The cock is operated by pressing down the lever f, which acts on the spindle e of the piston. The piston B has a tail g underneath for applying pressure on the top of the spindle 71. of the spring valve D which closes the communication between the branches i a when the cock is closed, in the position of rest, and which allows the liquid to discharge when pressed down.

All the cocks of an installation are mounted by joining up two by two the branches Z2 b of two neighboring cocks so as to form a continuous pipe X (see Fig. 2), 4as before explained, and the branch a of each cock is branched onthe conduit Y by which the liquid is supplied from the reservoir RL The liquid is forced as with a force-pump, by the gas under pressure that fills the space above the liquid, of which the level is shown by instance in m n. The branch b of the first cock is connected by the last cock is connected t`o the end of the liquid pipe Y.

When all the liquid discharge cocks are closed the end of the piping Y for the liquid vis in communication by the piping X with the atmosphere of gas in the reservoir. The result is that after 'one or` more draw-offs from any of the cocks and as soon as the cocks are closed, the liquid is forced into the reservoir by the pressure of the gas, v since the piping is filled by pressure from the reservoir. `breakage then occurs in the piping and even the gas under If leakagev or if the latter should be entirely destroyed,

the gas from the reservoir escapes through prising the mountingA on a single system'of uting pipe adapted said liquid distributing piping of as large a number of cocksy as may be necessary. e f

Claims: l i 1 A safety system for distribution of liquids,

a plurality of outlets-from said distributing PIPG,

tributmg pipe adapted to admit inert gas thereto-forA returning the liquid /in said distributing pipe to said reservoir, and means for controlling the passage through said outlets and throughv saidvgas-pipe.

2. A safety system for distribution of liquids, comprising a liquid reservoir, a.

liquid distributing pipe leading therefrom',v

a plurality of outlets from said distributing pipe, a pipe connected tol admit inert gas thereto for returning the liquid in said distributing pipe Jto said reservoir, means in conjunction with each outlet for controlling the passagetherethrough and through said gas pipe, said means leaving the passage through said gas pipe normally open and operating to close said passage before opening .the passage through saidoutlets, the

closing of the passage in said gas-pipe effecting -th cutting off ofsaid gas-pipe from liquid distributing pipe is Acut ofi from said gas-pipe and liquid may flow in said liquid distributing pipe and from the outlets con-V nectedl thereto free from the effects of the gas-pressure in said gas-pipe. f

3. A safety system for distribution of liquids ing pipe, valves in said outlets, a pipe con'- nected to said liquid distributing pipe adapted to admitv inert gas thereto for rea lpipe to the gasl space of the reservoir, and the branch b ofv outlet valves comprising-- a liquid reservoir,- a` liquid -distributing pipe leading therefrom,

a pipe connected to said liquid dis-- to said liquid distribpipe, whereby said y .comprising a liquid reservoir, al liquid distributing pipe leading therefrom, a plurality of outlets from` said distribut# turning liquid in l said distributing pipe -`said valvesin said gas pipe being normally open and adaptedto be closed before said in saidv gas pipe effectin the cutting ofi" of said gasI pipe vfrom sai liquid distributing pipe, whereby said liquid distributing pipe is cut oil fromsaid gas pipe and liquid ma flowin said liquidr distributing pipe and rom said outlets connected thereto i .free from the effects of said gas pipe. l

4. A safety system for distribution of liquids, comprising a liquid reservoir adapted to contain an inert gas above the valves are opened, the closing of saidback to said reservoir,a plurality of valves means for operating a gas the gas pressure in level of the liquid therein, a liquid distribiuting pipe leading therefrom, a--plu'rality of outlets from said distributing pipe, a

pipe leading from said reservoir to said i liquid distributingl pipe adapted to admit gas from said reservoir to said distributlin g pipeV for returning liquid in saidl distributing pipe to said reservoir, means for controlling the passage through said gas and liquid distributing pipes, said means leavin thepassage through said gas pipe normally open and operating to close said passage before opening the passage through said distributing pipe, whereby said distributing pipe is cut off from said gas pipe, a liquid may flow in said liquid distributing pipe free from the effects' of the gas pressure in said gas pipe.

5. A safety system for distribution of liquids, comprising a liquid reservoir adapted to contain an inert gas above the level of the liquid-therein, la liquid distributing pipe leading therefrom, a plurality `of outlets'from said distributing pipe, a pipe connected to said liquid distributing pipe adapted to admitinert gasI thereto for re turning liquid in said distributing pipe to said reservoir, means in conjunction with each outlet for controlling the passage through said gas and liquid distributing pipe, said means comprising afvalve adapted to leave .the passage through said gas pipe normally open, and operating to close said passage before opening the passage through said distributing pipe, whereby said liquid tributing pipe free from the effects of the 'gas pressure in said gas pipe.

6. A safety system Vfor distribution of 1 liquids, comprising a liquid reservoir adaptled to contain an inert gas above the level of the liquid therein, a liquid distributing pipe leading therefrom, a plurality of outlets from said 'distributing pipe,.a pipe con'- nected to said liquid distributing pipe adapted to admit. inert gas thereto fo'r re 1 sov '1,168,744I 'l a si ing through one of said passagewaysyand the other valve-proper normally closing said other passageway, said first valve-proper operating to close said first passageway when the other valve-proper is operated to open said second passageway.

` 7. A safety system for distribution of liquids, comprising a liquid reservoir adapted to contain an inert gas abovey the level lof the liquid therein, a liquid distributing pipe leading therefrom, a` plurality of outlets from said distributing pipe, a pipe connected to said liquid distributing pipe adapted to admit inert gas thereto for returning liquid in said distributing pipe to said reservoir, means in conjunction with each outlet for controlling the passage through said gas and liquid distributing pipe, said means comprising a valve-proper for controlling each of said passageways, one valve-proper normally providing an opening through one of said passageways and the other valve-proper normally closingsaid other passageway, said second valve-proper being movable to open position by said first valve proper, said first valve proper closing the passageway controlled thereby when actuated to operate said other valve-proper. 4 l

8. A safety system for distribution of liquids, comprising'a liquid reservoir adapt-- ed to contain an inert gas above the level of the liquid therein, a liquid distributing pipe leading therefrom, a plurality of outlets from said distributing pipe, a pipe connected to said liquid distributing pipe adapt; ed to admit inert gas theretofor returning liquid in said distributing pipe to said reservoir, means in conjunction with each outlet for controlling the passage through said gas and liquid distributing' pipe, said means comprising a valve-proper for controlling each of said passageways, one valve-pro-peii normally providing an opening through one of said passageways and the other valveproper normally closing said other passageway, said secondvalve-proper being movable to open position by said iirst valve proper, said first valve-proper closing the passageway controlled thereby when actuated to operate said other valve proper, said valves-proper having a loose connection between them. s

9. A safety system for distribution of liquids, comprising a liquid reservoir adapted to contain an inert gas above the revel of the liquid therein, a liquid distributing pipe leading therefrom, a plurality of outlets from said distributing pipe, a pipe connected to said `liquid distributing pipe l adapted to admit inert gas thereto for returning liquid in said distributing pipe to said reservoir, means in conjunction with each outlet for controlling the passage through said gas and liquid distributing pipe, said means comprising a valve-proper f for 'controlling each of said passageways, means for pressing one of said valves-proper into open position, means for pressing said other valve-proper into closing position, said first valve-proper being adapted to move said second Valve-proper to open position and close the passageway controlled thereby.

10. A safety system for distribution of liquids, comprisin contain liquid un er pressure and an inert gas, a liquid distributing pipe, an outlet valve connected thereto, a pipe adapted to conduct gas from said reservoir to said liquid-distributing pipe, said valve controlling the passageway through said gas-pipe,

' and means for opening said valve to permit fiow of liquid therefrom, said means closing said gas-pipe when operated to open said liquid pipe, said gas-pipe being normally in open communication with said liquid pipe whereby reservoir pressure will be exerted upon the column of liquidin said liquid pipe, and said liquid pipe will normally be emptied.

11. A safety system for distribution of liquids, comprising a reservoir adapted to contain liquid under pressure and an inert `gas, a liquid distributing pipe, a gas pipe adapted toconduct gas from said reservoir to said liquid pipe, and a valve for controlling the passage of iiuid and gas through said pipes, said valve having a passageway municate, means in said valve for controlling said passageways, said gas-passageway being normally open whereby reservoir pressure will be exerted upon the column of liquid in said liquid pipe to expel liquid therefrom, said means operating to close said gas-passageway when said liquid passageway is opened.

12. A safety system for distribution of liquids, comprising a reservoir adapted to contain liquid under pressure, and an inert gas, a liquid distributing pipe, a gas-pipe adapted to conduct gas from said reservoir to said liquid pipe. branches from said liquid pipe, and a plurality of valves located therein, said valves having a passageway therethrough from said liquid pipe to an outlet, said valves also having passageways therethrough adapted to communicate on each side with said gas-pipe, said gas-passageways beingnormally open in the series `of a reservoir adapted to valves whereby reservoir pressure will be i exerted upon the column of liquid in said' signed loui` names in the presence of two subf liquid pipe to expel liquid therefrom, and scribingwitnesses. means in said valves for controlling said JEAN FRANCOIS ROLLAND.

passageways' said means operating to close l said 'gas-passggeyvay and thereby the gas PIERRE ANDRE PAUL MAUCLRE. pipe, When said llquid-passageway in one 'of Witnesses:

` sand Valves is opened and liquid dispensed. l v REN BAnDY,

In Witness whereof, We have hereunto BARTL'EY F. Yos'r. 

